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    • 44. 发明授权
    • Production of phosphorus and phosphoric acid
    • 生产磷和磷酸
    • US4656020A
    • 1987-04-07
    • US763288
    • 1985-08-07
    • James C. Barber
    • James C. Barber
    • C01B25/01C01B25/027C02F1/52C05B17/00
    • C02F1/52C01B25/01C01B25/027C05B17/00
    • Processes are disclosed for recovering solid wastes containing elemental phosphorus. The wastes may cause serious environmental problems at phosphorus furnaces because elemental phosphorus is toxic to marine animals. Recovery of the wastes was considered for the following.1. At phosphorus furnace plants making phosphoric acid as one of the products, when the objective is to produce only high-quality phosphoric acid.2. At phosphorus furnace plants making elemental phosphorus as a final product, and the objective is to provide only high-quality phosphorus.3. At plant sites where neither phosphoric acid nor phosphorus is produced.The processes include recycling the wastes to phosphorus furnaces. All of the phosphoric acid produced in 1 can be highly concentrated with low impurities content. In 2, all the low-quality phosphorus is recycled to the phosphorus furnaces and all the produce is high grade. In 3, phosphorus furnaces are not available at the plant site and recycling the solid wastes is impractical. In this case processes are disclosed for recovering the elemental phosphorus from the waste, converting the residue to granular fertilizer, and making suspension fertilizer from water containing elemental phosphorus.
    • 公开了用于回收含有元素磷的固体废物的方法。 由于元素磷对海洋动物有毒,废弃物可能对磷炉造成严重的环境问题。 以下考虑废物的回收。 在磷化炉厂将磷酸作为产品之一,目的是生产优质磷酸。 2.在磷炉厂制造元素磷作为最终产品,目的是提供高品质的磷。 3.在不生产磷酸和磷的植物地点。 这些过程包括将废物回收到磷炉。 1中产生的所有磷酸都可以高度浓缩,杂质含量低。 2,所有低质量的磷被回收到磷炉,所有的产品都是高档的。 3,磷厂在厂址不可用,而且固体废物的再循环是不切实际的。 在这种情况下,公开了用于从废物中回收元素磷的过程,将残余物转化为颗粒肥料,并从含有元素磷的水中制备悬浮肥料。
    • 47. 发明授权
    • Fertilizer from phosphorus furnace waste stream
    • 磷炉废弃物的化肥
    • US4537615A
    • 1985-08-27
    • US502921
    • 1983-06-10
    • James C. Barber
    • James C. Barber
    • C01B25/01C01B25/027C02F1/52C05B17/00C05B7/00C05B11/10
    • C02F1/52C01B25/01C01B25/027C05B17/00
    • Processes and compositions of matter are disclosed for the production of liquid fertilizers wherein wastewater from a phosphorus smelting furnace is incorporated in liquid fertilizer processes. The wastewater replaces water evaporated and the wastewater dissolves fertilizer salts. A serious water pollution problem is avoided when wastewater is incorporated in liquid fertilizers. The invention discloses a process for making orthophosphate suspension fertilizer wherein impure phosphoric acid is neutralized in the condensing system, water from the condensing system is bled off, and a suspending clay is added to produce orthophosphate suspension fertilizer. In this process, phosphorus sludge made at phosphorus furnaces is used to produce suspension fertilizer, and wastewater from phosphate smelting furnaces is recovered. New compositions of matter are disclosed. A process is disclosed for making phosphoric acid with low impurities content wherein phosphorus sludge is burned to make impure orthophosphoric acid and the impure acid is recycled to an agglomerating step in a process for making elemental phosphorus.
    • 公开了用于生产液态肥料的物质的方法和组成,其中来自磷冶炼炉的废水被掺入液体肥料方法中。 废水替代蒸发的水,废水溶解肥料盐。 当废水掺入液体肥料时,避免了严重的水污染问题。 本发明公开了一种制备正磷酸盐悬浮肥料的方法,其中在冷凝系统中中和不纯的磷酸,将来自冷凝系统的水排出,并加入悬浮粘土以生产正磷酸盐悬浮肥料。 在这个过程中,磷磷制成的磷污泥用于生产悬浮肥料,回收了来自磷酸盐冶炼炉的废水。 披露了新的物质组成。 公开了一种制备低杂质含量的磷酸的方法,其中磷污泥被燃烧以制造不纯的正磷酸,并且在制造元素磷的过程中将不纯的酸再循环到附聚步骤。
    • 49. 发明授权
    • Production of fluid fertilizer from phosphorus furnace waste stream
    • 从磷炉废料流中生产流体肥料
    • US4451277A
    • 1984-05-29
    • US428840
    • 1982-09-30
    • James C. Barber
    • James C. Barber
    • C01B25/01C01B25/027C02F1/52C05B17/00C05B11/10C05B7/00
    • C02F1/52C01B25/01C01B25/027C05B17/00
    • Processes and compositions of matter are disclosed for the production of liquid fertilizers wherein wastewater from a phosphorus smelting furnace is incorporated in lqiuid fertilizer processes. The wastewater replaces water evaporated and the wastewater dissolves fertilizer salts. A serious water pollution problem is avoided when wastewater is incorporated in liquid fertilizers. The invention discloses a process for making orthophosphate suspension fertilizer wherein impure phosphoric acid is neutralized in the condensing system, water from the condensing system is bled off, and a suspending clay is added to produce orthophosphate suspension fertilizer. In this process, phosphorus sludge made at phosphorus furnaces is used to produce suspension fertilizer, and wastewater from phosphate smelting furnaces is recovered. New compositions of matter are disclosed. A process is disclosed for making phosphoric acid with low impurities content wherein phosphorus sludge is burned to make impure orthophosphoric acid and the impure acid is recycled to an agglomerating step in a process for making elemental phosphorus.
    • 公开了用于生产液体肥料的物质的方法和组合物,其中来自磷冶炼炉的废水被掺入肥料肥料方法中。 废水替代蒸发的水,废水溶解肥料盐。 当废水掺入液体肥料时,避免了严重的水污染问题。 本发明公开了一种制备正磷酸盐悬浮肥料的方法,其中在冷凝系统中中和不纯的磷酸,将来自冷凝系统的水排出,并加入悬浮粘土以生产正磷酸盐悬浮肥料。 在这个过程中,磷磷制成的磷污泥用于生产悬浮肥料,回收了来自磷酸盐冶炼炉的废水。 披露了新的物质组成。 公开了一种制备低杂质含量的磷酸的方法,其中磷污泥被燃烧以制造不纯的正磷酸,并且在制造元素磷的过程中将不纯的酸再循环到附聚步骤。
    • 50. 发明授权
    • Bench scale drum agglomerator and power means
    • 台式鼓式聚焦机和动力装置
    • US4373893A
    • 1983-02-15
    • US316344
    • 1981-10-29
    • James C. Barber
    • James C. Barber
    • C01B25/01C01B25/027C02F1/52C05B17/00B22F3/00
    • C02F1/52C01B25/01C01B25/027C05B17/00
    • A process and product of waste recovery at phosphorus furnaces is disclosed wherein small sized discrete particles of carbonaceous material or beneficiated phosphate ore are mixed with a mineral acid, an alkaline fluid and water, and the reacted mixture is tumbled in a horizontal cylinder at a temperature below that at which the carbonaceous material oxidizes to form agglomerates which are then indurated to discrete particulate size as desired for a charge component; the agglomerates are fed to a phosphorus smelting furnace together with other materials needed to make elemental phosphorus, furnace gases are cooled with recirculating water, a side stream of the water is taken off, treated, and used as feedstock in fluid fertilizers. Apparatus is disclosed for agglomerating coke and phosphate and, further, for measuring the abrasion and shatter resistance of agglomerates.
    • 公开了一种在磷炉中废物回收的方法和产物,其中将小尺寸的碳质材料或精选磷酸盐矿石的离散颗粒与无机酸,碱性流体和水混合,并将反应的混合物在水平圆筒中以温度 低于碳质材料氧化以形成附聚物,然后根据需要将电荷组分饱和到离散的颗粒尺寸; 将附聚物与制造元素磷所需的其它材料一起进料到磷冶炼炉中,炉内气体用再循环水冷却,水的侧流被除去,处理并用作流体肥料中的原料。 公开了用于凝结焦炭和磷酸盐的装置,此外,还用于测量附聚物的耐磨性和抗碎裂性。